Skylanders Universe: Spyro Versus the Mega Monsters (The Mask of Power #1) by Onk Beakman

Super-sized critters are popping up and causing havoc all over Skylands! Spyro and his fellow Skylanders set out on a mission to work out what's going on and save the day -- but it seems the scheming Kaos is intent on beating them to it.

Based on the characters from the smash hit Skylanders Spyro's Adventure video game, Spyro versus the Mega Monsters is the very first novel in the new Mask of Power series.